shakib should learn to bowler the doosra, it's always good to have another variation. i reckon other than the pacer spots naeem's spot is the most up in the air atm, he and riyad basically play the same role but riyad is out playing naeem atm and with the bowling having a bit of trouble recently the most logical thing would be to drop a batting allrounder for a bowling allrounder to sure up the bowling.